18239900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 45997056

約数和(自身を除く): 27757156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 140, 142, 175, 284, 350, 355, 367, 497, 700, 710, 734, 994, 1420, 1468, 1775, 1835, 1988, 2485, 2569, 3550, 3670, 4970, 5138, 7100, 7340, 9175, 9940, 10276, 12425, 12845, 18350, 24850, 25690, 26057, 36700, 49700, 51380, 52114, 64225, 104228, 128450, 130285, 182399, 256900, 260570, 364798, 521140, 651425, 729596, 911995, 1302850, 1823990, 2605700, 3647980, 4559975, 9119950, 18239900]

約数ペア:

[(1, 18239900), (2, 9119950), (4, 4559975), (5, 3647980), (7, 2605700), (10, 1823990), (14, 1302850), (20, 911995), (25, 729596), (28, 651425), (35, 521140), (50, 364798), (70, 260570), (71, 256900), (100, 182399), (140, 130285), (142, 128450), (175, 104228), (284, 64225), (350, 52114), (355, 51380), (367, 49700), (497, 36700), (700, 26057), (710, 25690), (734, 24850), (994, 18350), (1420, 12845), (1468, 12425), (1775, 10276), (1835, 9940), (1988, 9175), (2485, 7340), (2569, 7100), (3550, 5138), (3670, 4970)]